Analysis of Phone bills

Presented by Ankan Jyoti Bhattacharyya

Nishant TiwariPriyajit Mishra

Trisha ChakrabartyUjwal Prasad

Agenda

• Overview• Descriptive analysis• Current plan review• Plan that suits the customer• Prediction

Overview• Current plan

– Monthly rental = Rs 299– Activation date = 22 Sep 2013– Call rate to local mobile phones –

30 paisa– Call rate to Vodafone users- 30

paisa– Call rate to other landline

numbers = 30 paisa– STD call rate to Vodafone

numbers, other mobile numbers, other landline numbers =50 paisa

– National SMS charges = Rs 1.5– International SMS charges = Rs 5

•The subscriber is a Vodafone user•Problem definition- Analyze the current plan and see what more can be done to satisfy the needs of the customer•Tools used – Microsoft Excel•Preprocessing –Arranged the data available in a proper format to analyze the data properly•Analysis is done with the data available to get some insights about the usage pattern of the customer

Descriptive analysis(Peak on and Peak off time for calls made)

• Peak on time –the time when maximum amount of calls are made = 8-10 PM

• Peak off time – The time when least number of calls are made = 4-10AM

12-2AM2-4AM

4-6AM6-8AM

8-10AM

10-12PM

12-2PM2-4PM

4-6PM6-8PM

8-10PM

10-12PM0

2

4

6

8

10

12

14

16

18

Time duration

Frequency

Data usage

The data usage is usually greater between 10AM -2PM and 8-10PMThe data usage was found greater for only a certain period of the month i.e.20th to 23rd Dec,2013Total usage in a month = 1921.79 Mb

12-2 am

2-4am

4-6 am

6-8 am

8-10 am

10 am-12 pm

12-2 pm

2-4 pm

4-6 pm

6-8 pm

8-10 pm

10 pm-12 am

0.05000.0

10000.015000.020000.025000.030000.0

Avg. data usage (Kb)

Avg data usage

Call destination

06

1218

19

2 3 5 4 47

16 4 2 3

Max call in a month

•Maximum number of calls were done to a landline number – 3324189090•Next maximum calls were done to a other mobile number- #918584979712•3rd Maximum number of calls were done to a other mobile number = #919903383201

SMS Usage

Peak-on time frame SMS Usage On Basis Of Network

Range Morning (6 AM-12 PM)

Afternoon 12 PM-6pm

Evening(6pm-10am)

Night(10PM-6AM)

Number of msgs 38 54 113 31

0

20

40

60

80

100

120

SMS USAGE

Number of msgs

Time Range

No

of m

essa

ges

Vodafone Others

Vodafone 62 174

Vodafone

Others

Vodafone

62NaN

174

103050

SMS USAGE ON BASIS OF NETWORK

No

of m

essa

ges

Called Numbers

No of Calls-Usage on Basis of Network Night Speak

Networks Vodafone Others Landline Special Numbers

Vodafone 73 50 31 3

Vodafone Others Landline Special Numbers0

10

20

30

40

50

60

70

80

No of calls-on network basis

Networks

No

of c

alls

Vodafone Others0

1

2

3

4

5

6

7

8

Night Speak

Networks

No

of C

alls

Networks Vodafone Others

Vodafone 3 7

Current Plan ReviewCall Tariff:• Rs 299 is paid as a tariff to get free call minutes• Bill tells you the duration of all calls=351 minutes(335 minutes local + 11 minutes

night call and 5 minutes STD)• Charges(without tariff) for this plan is 30paise/min for local & night calls and

50paise/min for STD calls• So by his usage of 346 minutes for local & night calls is should pay= Rs 104 but he is

paying Rs.299• So he is paying a lot more than the actual chargeNet Tariff:• Currently he is being charged Rs 236 per 1gb data usage so he will be charged Rs 500

for his data usage which fits good with his current planSMS tariff:• He pays a tariff of Rs.50 in which he gets 288 free local messages i.e. nearly

17paise/sms• His on peak time of sending sms is in evening so for that particular time he can be

charged at 10p/sms and for rest of the time 17p/sms• Thus his tariff can be Rs.35/month for free local SMS.

Plan that suits the customer

•Airtel My Plan would be a very good option for our customer• It is a do –it –yourself

postpaid plan that will let you use your phone in the same way you want it

Plan that suits the customer(cont’d)

Select the rental that you find suitable

Select the My packs of your choice

Plan that suits the customer(cont’d)

Finally choose some value boosters

PredictionGender-Male• The call duration were less and usually females are prone to talk more compared to male.• In fact, women talk almost three times as much as men, with the average woman chalking up 20,000

words in a day - 13,000 more than the average man.

Approximate Age-35-45• The duration of the calls is very less and thus he uses only the phone for business purposes• People contacted in day is far less than a person of much younger age will doKind of phone-• Smartphone,3G enabled• Huge data transfer and usage compared to a normal mobile phoneAny other information-• Occupation can be a businessman or an executive • Data pattern- the kb/s is not used enough in any day as compared to a student.• Thus we can predict the person only uses the data pack for not so heavy uses such as

downloading but for basic necessities like checking e-mails, social networking or business sites etc.

Source - http://www.dailymail.co.uk/femail/article-419040/Women-talk-times-men-says-study.html

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